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Doctor insights on: Causes Of Red Rash On One Arm

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I have a thick rash only on my left arm pit. What should I do? The rash is not one big rash. It is spred out in 4 different rashes & bright red.

I have a thick rash only on my left arm pit. What should I do? The rash is not one big rash. It is spred out in 4 different rashes & bright red.

Get the diagnosis: There are many types and causes of skin rashes. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment. ...Read more

Dr. John Chiu
2,673 Doctors shared insights

Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more


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Red rashes on arms on right arm. Causes?

Red rashes on arms on right arm. Causes?

Many possibilities: There are many types and causes of skin rashes. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment. ...Read more

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Now & then on backs of arms I get lots of tiny bumps almost like a rash with no redness or itching they hang around for few days comes & goes causes?

Now & then on backs of arms I get lots of tiny bumps almost like a rash with no redness or itching they hang around for few days comes & goes causes?

Possibilities: Could be keratosis pilaris. Are they firm bumps? If so it can be caused by keratin clogging hair follicles. Gently using a "buff-puff" or other time of mildly exfoliating cloth while in the bath or shower can help unplug the follicles; then pat your self dry and allow to air dry prior to using a mild retinoid; like retin a (tretinoin) which is a prescription or an over the counter retinol product. ...Read more

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Can anxiety cause "hot spots"? A burning sensations in arms, back, between breasts, under left breast. No rash or redness. Just a feeling of pain.

Can anxiety cause "hot spots"? A burning sensations in arms, back, between breasts, under left breast. No rash or redness. Just a feeling of pain.

Possible: Anxiety can definitely cause physical symptoms in the head, chest, back and arms. But these can also be signs of other serious health conditions so you should see your doctor and have a thorough examination so that you can treated for the correct problem. ...Read more

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I continually get a sort of rash on only one arm and only on the bicep. It consists of lots of small red dots that dry up. It's only ever on one arm.

I continually get a sort of rash on only one arm and only on the bicep. It consists of lots of small red dots that dry up. It's only ever on one arm.

Eczema/dermatitis: A rash that is itchy and scaly is possibly eczema or ringworm (not a real worm, but a name for a fungal infection). Rashes that come and go when it is in contact with something like a watch, rubber band/hair tie, etc can be contact dermatitis, which is due to irritated skin. Eczema and dermatitis can be treated with over the counter hydrocortisone cream. ...Read more

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What could causea large red armpit rash under only one arm for over3 wks?

What could causea large red armpit rash under only one arm for over3 wks?

Several: It is possible to have an infection, fungal or bacterial. You could have an allergic reaction or just a severe irritation to shaving. Some dermatitis can start in one location or be isolated to one area. If fever, pain, or drainage or weeping fluid, see ur dr. If not can try an anti fungal powder to keep dry or mild steroid cream for relief of itch, irritation. ...Read more

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One red circular rash on arm that flares up at least twice a year in same spot warm and itchy. When not inflamed, there's always a light brown spot.

One red circular rash on arm that flares up at least twice a year in same spot warm and itchy. When not inflamed, there's always a light brown spot.

See Your Doctor: Your rash suggests a condition called Cutaneous Mastocytosis; excess mastocyte cells accumulate usually in skin & release histamine; causing itching, hives, & more. Can occur as single or multiple lesions, involved skin is darker in color. Stroking or other mechanical trauma to skin can cause symptoms to flare-up. Occurs in children & ages 30-49 yrs. See doctor for correct diagnosis & treatment. ...Read more

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What could cause itchy red rash under upper arm and back of knees?

What could cause itchy red rash under upper arm and back of knees?

Many possibilities: Possibilities are intertrigo, eczema, inverse psoriasis, contact dermatitis, candida (yeast). See a doctor or dermatologist for proper diagnosis and treatment. ...Read more

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What causes an itchy rash that is a red patch with little bumps in it and is located on the inside of my upper arm near my arm pit.?

What causes an itchy rash that is a red patch with little bumps in it and is located on the inside of my upper arm near my arm pit.?

Not sure - eczema?: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes. ...Read more

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I have a rash on one of my arms and I've had it for 2 days. Its a bunch of small red bumps and it feels like its on fire when I itch it.

I have a rash on one of my arms and I've had it for 2 days. Its a bunch of small red bumps and it feels like its on fire when I itch it.

Red vesicular rash: 18 year old with painful burning vesicles on arm. Get a full medical history and in person physical exam ASAP. You can try a consult in your area as well. If the rash is itchy (pruritic) and painful you need to give more history. The differential is large and it could be anything from zoster to contact dermatitis to chiggers or a reaction to insect bites, bedbugs, or scabies. A picture=1k words. ...Read more

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When I get out of the shower I get this red patchy rash on my upper arms then I put lotion on and it helps cause in the morning it is no longervisible?

When I get out of the shower I get this red patchy rash on my upper arms then I put lotion on and it helps cause in the morning it is no longervisible?

CholinergicUrticaria: Probably cholinergic urticaria. Read online about it and see if this fits the description that you give. It is quite common and can be manged should it become a nuisance. ...Read more

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What may cause red bumps (rash) like allergy, to come and go away on arms and back? What are the causes?

Keratosis Pilaris: Keratosis pilaris is a common skin condition in which a protein in the skin called keratin forms hard plugs within hair follicles.
Causes, incidence, and risk factors
keratosis pilaris is harmless (benign). It seems to run in families. It is more common in people who have very dry skin, or who have atopic dermatitis (eczema). ...Read more

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My daughter recently got a rash, they look like little red bumps but real close together. They are all up her arm and down her torso to hip one side.

My daughter recently got a rash, they look like little red bumps but real close together. They are all up her arm and down her torso to hip one side.

Many possibilities: Rashes are quite difficult to sort out without an exam. This could be something simple like a reaction to something that touched the skin or the result of a viral infection. If it is bothersome or persistent I would have your pcp look at it. ...Read more

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What cause a burning red rash on the bridge of arms above the armpit, that doesn't spread? As well as pinching sensation in armpit.

What cause a burning red rash on the bridge of arms above the armpit, that doesn't spread? As well as pinching sensation in armpit.

? Both sides: If this is bilateral, it is likely something your skin was exposed to or traumatized by. Send a picture or see your MD to help sort this out. If you are otherwise sick be seen. All the best. ...Read more

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Showering or bathing causes red rash and bumps on my shoulders, back and top of arms. Have tried using sensitive soaps but they seem worse.

Rash: R u taking shower with hot water? I guess what I'm referring to is--- rash of mastocytosis is triggered by hot water baths. Or is it that rash appears after cold water howlers too? In that cars you are allergic to certain chemicals in water in your area. Consult your md. ...Read more

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What can cause a sudden face rash with burning sensation? Also have several red spots on my arms.

What can cause a sudden face rash with burning sensation? Also have several red spots on my arms.

Facial rash: Facial rash with burning can be cause by an allergic reaction to something that touched your facial skin, a viral infection like herpes, shingles on the face, photo-drug reaction to a medication you are taking, and other causes, skin diseases like Lupus. You should see your local dermatologist for the correct diagnosis. ...Read more

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I jus got back frm trip 2 hilly area now m experiencing rashes on arms face feet. It includes bumps lyk mosquito bites litle redness itch. What is it??

I jus got back frm trip 2 hilly area now m experiencing rashes on arms face feet. It includes bumps lyk mosquito bites litle redness itch. What is it??

Rash: It sounds like you may have been exposed to a toxin such as poison ivy or oak. Try not to sratch the area. Take an antihistamine to see if it will help. Use Aveeno (oatmeal) in your bath water and try a mild hydrocortisone cream. If this doesn't help see your doctor for an assessment and consideration for steroids taken by mouth. All the best and I hope you feel better soon. ...Read more

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I have noticed 2 small itchy bumpy rashes (not red) on my left & one on my right hand. And several goosebump like patches on my left forearm. Worried.

I have noticed 2 small itchy bumpy rashes (not red) on my left & one on my right hand. And several goosebump like patches on my left forearm. Worried.

Allergic reaction: You can try Benadryl (diphenhydramine) to see if it helps. If no improvement in a couple of days, end us a picture on a virtual consult to help us make a more specific diagnosis. ...Read more

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Red/purp marks on arm cleared in 3 days and came back 2 wks later. One doctor said purpura and one said rash. Also chest pain and difficulty breath! In?

Red/purp marks on arm cleared in 3 days and came back 2 wks later. One doctor said purpura and one said rash. Also chest pain and difficulty breath! In?

Doctor can examine: "Difficulty breathing" means a trip to see her doctor now. If she seems distressed, that means an ambulance trip (by calling 911). Difficulty breathing can be due to many different problems, and some are serious. "Purpura" is bruise-colored skin spots, and may or may not be serious, depending on why they are there. Blood tests may be needed, to see if there is a serious problem in the blood. ...Read more

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Upper back pain for 3 days and now red bumpy itchy rash on chest, shoulders, back, and upper arms? Ideas? Also no one can touch me without pain

Upper back pain for 3 days and now red bumpy itchy rash on chest, shoulders, back, and upper arms? Ideas? Also no one can touch me without pain

Chicken pox?: Http://www. Mayoclinic. Org/diseases-conditions/chickenpox/basics/definition/con-20019025

or shingles...

be careful, you might be very very contagious. There are some good antiviral medications. You should get checked out! ...Read more

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I have had severe upper rhespiratory problems due to allergies for the past few days but today they re better but now after taking a Claritin and a hot shower I have a blotchy red rash on my arms and legs it s not itchy but I m wondering what the cause mi

I have had severe upper rhespiratory problems due to allergies for the past few days but today they re better but now after taking a Claritin and a hot shower I have a blotchy red rash on my arms and legs it s not itchy but I m wondering what the cause mi

Viral? Allergic?: Blotchy appearing reddish rashes can occur when the blood flow in the tiny vessels at the skin's surface change, such as in an allergic rash, a viral rash, or in reaction to changes in skin temperature. Viral infections that cause cold symptoms and other symptoms can sometimes cause such skin patterns (fifth disease, caused by a virus, can cause reddish patterns). A doctor can evaluate if needed. ...Read more

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Can herpes or a vaginal yeast infection cause a skin rash throughout the body? I have a skin rash that develops first with an itch and then a round red bump appears. The first few where limited to my lower left arm and looked more like bites but then dis

Can herpes or a vaginal yeast infection cause a skin rash throughout the body? I have a skin rash that develops first with an itch and then a round red bump appears. The first few where limited to my lower left arm and looked more like bites but then dis

It: It would be very unusual for herpes or vaginal yeast infection to spread throughout the body. Other medical issues, such as MRSA (methicillin resistant staph aureus), eczema, psoriasis, pityriasis, or other dermatological issues can cause a rash on the body. Trying a mild anti-bacterial soap and mild lotion may be helpful, but if it is a worsening rash, or if the patient had fever or new symptoms, then the patient should be medically evaluated. ...Read more

Dr. Cornelia Franz
1,059 Doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more